Wood-preserving composition



UNITED STATES PATENT. FFICE.

HARRISON H. BLODGETT, OF OMAHA, NEBRASKA.

WOOD-PRESERVING COMPOSITION.

SPECIFICATION forming part of Letters Patent No. 606,702, dated July 5, 1898.

Application filed February 10, 1898. Serial No. 669,772. (N specimens.)

To all whom it may concern.-

Beit known that I, HARRISON H. BLODGETT, a citizen of the United States of America, re-

- siding at Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Wood-Preserving Compositions, of which the following is a specification.

This invention relates to certain new and useful improvements in compositions for preserving wood, it being particularly applicable to all kinds of wood when used in damp localities;- and the invention consists of one part of sulfate of iron, three parts of sulfite soda, one part'of sodium nitrate, one part of magnesium sulfate, and five parts of chlorid of sodium combined by first pulverizing and mixing together in the proportions named and applied to the wood in the usual manner by first boringa hole therein and filling the cavity with the mixture, after which the hole is plugged up. After the wood has been thus treated the composition, by the natural chemical action going on in the said wood, percolates through and fills the pores, thereby preventing the souring and fermentation of the substances contained therein, this souring and fermentation being the cause of decay, and destroys the eggs of the larvae,which otherwise would hatch out in the wood and destroy the same in their endeavor to escape.

By the use of my composition the softest and most porous woods, such as cottonwood or the redwood of California, are rendered equally durable with the harder timbers, as the substances in the wood which cause destroyed, thus preventing decay.

When applied to fence-posts or other wood partially embedded in the ground, the composition is introduced just above the groundline in the manner before described, the dampness of the wood under treatment causing the composition to dissolve and fill the pores of the wood, and thus arrest fermentation which would result from such dampness, and thereby prevent decay.

Wood treated with this composition in the manner and proportion named will last an indefinite length of time, and in the use of wood for fence or other posts or for sills, &c., where the material is exposed to the damp, such treatment will be found very desirable in not only preventing decay, but in saving the necessary repairs and renewal from time to time of such posts, sills, &c.

The composition being simple and inexpensive in its parts is easily prepared and readily applied and can be put up and sold upon the market in a neat and desirable manner at a comparatively small cost.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

A wood-preserving composition consisting of sulfate of iron, sulfite soda, sodium nitrate, magnesium sulfate, and chlorid of sodium, in substantially the proportions named, and for the purpose set forth.

In testimony whereof I aifix my signature in presence of two witnesses.

HARRISON H. BLODGETT.

Witnesses:

JAMES E. PHILPOTT, WILLIAM A. GREEN. 

